SYSTEM AND METHOD FOR CONTROLLING COOLANT SUPPLY TO EXHAUST GAS

PROBLEM TO BE SOLVED: To provide a system and method for controlling coolant supply to an exhaust gas of an engine supplied to an HRSG.SOLUTION: A system includes an exhaust conduit 26 configured to route an exhaust gas 22 from an engine 16 to a heat recovery steam generator (HRSG) 18. The system 10...

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Bibliographische Detailangaben
Hauptverfasser:	SHOLES JOHN EDWARD, JORDAN JR HAROLD LAMAR, WILKES KEVIN WOOD, YAMIL MIGUEL MORALES VALVIEJA, JOHN D MEMMER
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS ENGINE PLANTS IN GENERAL ENGINE PLANTS NOT OTHERWISE PROVIDED FOR ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES GAS-TURBINE PLANTS HEATING HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINEPLANTS HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NOT OTHERWISE PROVIDED FOR STEAM ACCUMULATORS STEAM ENGINE PLANTS STEAM ENGINES USE OF WASTE HEAT OF COMBUSTION ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a system and method for controlling coolant supply to an exhaust gas of an engine supplied to an HRSG.SOLUTION: A system includes an exhaust conduit 26 configured to route an exhaust gas 22 from an engine 16 to a heat recovery steam generator (HRSG) 18. The system 10 also includes a coolant supply 14 coupled to the exhaust conduit 26. The coolant supply 14 is configured to supply a coolant to the exhaust conduit 26. Additionally, the system 10 includes a controller 12 configured to control the coolant supply to control an exhaust temperature of the exhaust gas 22 flowing through the exhaust conduit 26 from the engine 16 to the HRSG 18, or a steam temperature of steam 24 generated by the HRSG 18, or a combination thereof. The controller 12 is configured to control the coolant supply 14 differently in a full load condition than in a part load condition of the system 10.SELECTED DRAWING: Figure 1 【課題】ＨＲＳＧに供給されるエンジンの排気ガスへの冷却剤供給を制御するためのシステムおよび方法を提供する。【解決手段】システム１０は、エンジン１６からの排気ガス２２を熱回収蒸気発生器（ＨＲＳＧ）１８に送る排気導管２６を含み、また、システム１０は、排気導管２６に接続される冷却剤供給源１４を含んでいて、冷却剤供給源１４は、排気導管２６に冷却剤を供給する。さらに、システム１０は、エンジン１６からＨＲＳＧ１８まで排気導管２６を通って流れる排気ガス２２の排気温度、ＨＲＳＧ１８によって発生する蒸気２４の蒸気温度、またはこれらの組み合わせを制御するために冷却剤供給源を制御するコントローラ１２を含んでいる。コントローラ１２は、システム１０の全負荷状態と部分負荷状態とでは異なる仕方で冷却剤供給源１４を制御する。【選択図】図１